Power Windows Malfunction (5 Door)
Power Windows Malfunction (5 Door)
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview) provides an overview of each diagnostic category.
Diagnostic Fault Information
Circuit/System Description
The each power window is controlled by their respective window switches front and the driver master control contains power window switches that controls all power window operations. When a power window switch is activated to a desired position, power window switch will send a signal to it's respective door window motor to move the window to the desired position. The window motors may also receive a comfort closing command from the rear fuse block which will cause all windows to perform the express down function.
The rear window switches also receive voltage from the driver window switch lockout control which permit normal window operation from the rear window switches.
Reference Information
Schematic Reference
Moveable Window Schematics ([1][2]Electrical Diagrams)
Connector End View Reference
Component Connector End Views (Connector Views)
Description and Operation
Power Windows Description and Operation (Power Windows Description and Operation)
Electrical Information Reference
* Circuit Testing (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)
Scan Tool Reference
Control Module References (Programming and Relearning) for scan tool information
Circuit/System Verification
1. Ignition ON, command the each window UP and DOWN using the window switches on the driver master control and by using their respective door window switches. Each window should perform the UP and DOWN functions from each switch.
• If the driver door window malfunctions, refer to Driver Power Window Malfunction.
• If the front passenger door window malfunctions, refer to Passenger Power Window Malfunction.
• If the left rear or right rear door window malfunctions, refer to Rear Power Window Malfunction.
2. Disable the rear window switches by activating the window lockout switch on the driver master control. The rear power windows should be inoperative from the rear door window switches.
• If the rear window switches are still active, refer to Rear Power Window Lockout Malfunction.
3. Command each window to express down by pressing and holding the respective window switch until the window powers approximately one quarter of the way down and releasing the window switch. The window should roll completely down.
• If a window fails to perform the express down function, refer to Window Motor Programming - Express Function (Programming and Relearning).
4. Ignition OFF, with the doors locked, command all windows to express DOWN by pressing and holding the unlock button on the remote keyless entry transmitter, all windows should perform the express DOWN function.
• If a window fails to perform the express DOWN command, refer to Comfort Closing Command Malfunction.
Circuit/System Testing
Driver Power Window Malfunction
1. Ignition OFF, disconnect the harness connector at the driver window switch.
2. Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal 26 and ground.
• If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance.
3. Connect the harness connector at the driver window switch. Disconnect the harness connector at the driver window motor.
4. Ignition OFF, test for less than 5 ohms between the ground circuit terminal 4 and ground.
• If greater than the specified range, test the ground circuit for an open/high resistance.
5. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal 1 and ground.
• If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
6. Connect a test lamp between the control circuit terminal 2 and control circuit terminal 3.
7. Command the driver window UP and DOWN by using the driver window switch. The test lamp should turn ON when commanding the UP and DOWN states.
• If the test lamp remains OFF during either of the commands, test either control circuit for a short to ground or open/high resistance. If the circuits test normal, replace the driver window switch.
• If the test lamp is always ON, test either control circuit for a short to voltage. If the circuits test normal, replace the driver window switch.
8. If all circuits test normal, test or replace the driver window motor.
Passenger Power Window Malfunction
1. Ignition OFF, disconnect the harness connector at the passenger window switch.
2. Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal 1 and ground.
• If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance.
3. Connect a test lamp between the control circuit terminal 3 and control circuit terminal 6.
4. Command the passenger window UP and DOWN by using the RF window switch on the driver master control. The test lamp should illuminate when commanding the UP and DOWN states.
• If the test lamp remains OFF during either of the commands, test either control circuit for a short to ground or open/high resistance. If the circuits test normal, replace the driver window switch.
• If the test lamp is always ON, test either control circuit for a short to voltage. If the circuits test normal, replace the driver window switch.
5. Ignition OFF, connect the harness connector at the passenger window switch and disconnect the harness connector at the passenger window motor.
6. Connect a test lamp between the control circuit terminal 2 and the control circuit terminal 3.
7. Ignition ON, command the passenger window UP and DOWN by using the passenger window switch. The test lamp should turn ON when commanding the UP and DOWN states.
• If the test lamp remains OFF during either of the commands, test either control circuit for a short to ground or open/high resistance. If the circuits test normal, replace the passenger window switch.
• If the test lamp is always ON, test either control circuit for a short to voltage. If the circuits test normal, replace the passenger window switch.
8. If all circuits test normal, test or replace the passenger window motor.
Rear Power Window Malfunction
1. Ignition OFF, disconnect the harness connector at the appropriate rear window switch.
2. Ignition ON, enable the rear window switches by pressing the window lockout switch on the driver master control.
3. Verify that a test lamp illuminates between the control circuit terminal 1 and ground.
• If the test lamp does not illuminate, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, test or replace the driver window switch.
4. Connect a test lamp between the control circuit terminal 6 and control circuit terminal 3.
5. Ignition ON, command the rear passenger door window UP and DOWN using the window switch on the driver master control. The test lamp should turn ON when commanding the UP and DOWN states.
• If the test lamp remains OFF during either of the commands, test either control circuit for a short to ground or open/high resistance. If the circuits test normal, replace the driver window switch.
• If the test lamp is always ON, test either control circuit for a short to voltage. If the circuits test normal, replace the driver window switch.
6. Ignition OFF, connect the harness connector at the rear window switch and disconnect the harness connector at the rear window motor.
7. Connect a test lamp between the control circuit terminal 2 and the control circuit terminal 3.
8. Ignition ON, command the rear window UP and DOWN by using the rear window switch. The test lamp should turn ON when commanding the UP and DOWN states.
• If the test lamp remains OFF during either of the commands, test either control circuit for a short to ground or open/high resistance. If the circuits test normal, replace the rear window switch.
• If the test lamp is always ON, test either control circuit for a short to voltage. If the circuits test normal, replace the rear window switch.
9. If all circuits test normal, test or replace the rear window motor.
Lockout Switch Malfunction
1. Ignition OFF, disconnect the harness connector at the appropriate rear window switch.
2. Connect a test lamp between the control circuit terminal 1 and ground.
3. Command the rear window lockout ON and OFF by using the lockout switch on the driver master control. The test lamp should turn ON and OFF when changing between the commanded states.
• If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, test or replace the driver window switch.
• If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, test or replace the driver window switch.
4. If all circuits test normal, test or replace the passenger window switch.
Comfort Closing Command Malfunction
1. Ignition OFF, disconnect the harness connector at the appropriate window motor.
2. Ignition ON, test for greater than 9 volts between the signal circuit terminal 6 and ground.
• If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the rear fuse block.
3. Test for less than 1 volt between the signal circuit terminal 6 and ground while commanding the Comfort Closing Test function with a scan tool.
• If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the rear fuse block.
4. If all circuits test normal, replace the window motor.
Component Testing
Driver Window Switch
1. Ignition OFF, disconnect the harness connector at the driver window switch.
2. Test for infinite resistance between the signal terminals 11 and 12 and the B+ terminal 26 with the RF window switch in the INACTIVE position.
• If less than the specified value, replace the driver window switch.
3. Test for less than 2 ohms between the signal terminal 12 and the B+ terminal 26 with the RF window switch in the UP position.
• If greater than the specified range, replace the driver window switch.
4. Test for less than 2 ohms between the signal terminal 11 and the B+ terminal 26 with the RF window switch in the DOWN position.
• If greater than the specified range, replace the driver window switch.
5. Test for infinite resistance between the signal terminals 27 and 28 and the B+ terminal 26 with the driver window switch in the INACTIVE position.
• If less than the specified value, replace the driver window switch.
6. Test for less than 2 ohms between the signal terminal 28 and the B+ terminal 26 with the driver window switch in the UP position.
• If greater than the specified range, replace the driver window switch.
7. Test for less than 2 ohms between the signal terminal 27 and the B+ terminal 26 with the driver window switch in the DOWN position.
• If greater than the specified range, replace the driver window switch.
Passenger Window Switch
1. Ignition OFF, disconnect the harness connector at the appropriate passenger window switch.
2. Test for infinite resistance between the control terminals 2 and 5 and the B+ terminal 1 with the switch in the INACTIVE position.
• If less than the specified value, replace the passenger window switch.
3. Test for less than 2 ohms between the control terminal 5 and the B+ terminal 1 with the switch in the UP position.
• If greater than the specified range, replace the passenger window switch.
4. Test for less than 2 ohms between the control terminal 2 and the B+ terminal 1 with the switch in the DOWN position.
• If greater than the specified range, replace the passenger window switch.
Repair Instructions
Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.
* Front Side Door Window Switch Replacement (Front Side Door Window Switch Replacement)
* Rear Side Door Window Switch Replacement (Rear Side Door Window Switch Replacement)
* Front Side Door Window Regulator Motor Replacement (Service and Repair)
* Rear Side Door Window Regulator Motor Replacement (Service and Repair)
* Control Module References (Programming and Relearning) for rear fuse block replacement, setup, and programming